Dd. had a low sodium level in her blood last week (127) and was admitted to hospital then put on a salt supplement for two days. Second blood test showed that levels had returned to normal range and sodium supplement stopped. Went today to have levels checked and they are now at 132 which is once again below average range. Doctors have given us no other information other than that she will need more regular blood tests and that they will call in the morning to make a plan of action. Has anybody else ever had this? And what could it be a sign of? Me and DH are now sitting here absolutely sh**ing it that it's going to be really bad news!